In January, Decker rose to brand director, North America brand operations, with oversight of about $2.6 billion in U.S. media spending, according to Kantar Media. She previously was brand director on P&G's North American pet care business, which was sold to Mars last year.

The review comes as P&G looks to jettison non-core brands and cut costs. In April, the company said it aimed to save $500 million annually by slashing fees, production costs and the number of agencies it works with.

SMG handles P&G's media buying and communications planning in U.S. and creates branded entertainment for the lion's share of the company's brands. As part of Carat's global P&G media responsibilities, the agency buys media in Canada and does communications planning for some brands in North America.

Representatives at P&G, SMG and Carat either declined to comment or did not return calls.

In January, Decker rose to brand director, North America brand operations, with oversight of about $2.6 billion in U.S. media spending, according to Kantar Media. She previously was brand director on P&G's North American pet care business, which was sold to Mars last year.

The review comes as P&G looks to jettison non-core brands and cut costs. In April, the company said it aimed to save $500 million annually by slashing fees, production costs and the number of agencies it works with.

SMG handles P&G's media buying and communications planning in U.S. and creates branded entertainment for the lion's share of the company's brands. As part of Carat's global P&G media responsibilities, the agency buys media in Canada and does communications planning for some brands in North America.

Representatives at P&G, SMG and Carat either declined to comment or did not return calls.